“…The remaining studies used the Pediatric Quality of Life Inventory (PedsQL, n = 3) [19, 22, 25], or a combination of the EQ-5D and SF-36 ( n = 1) [44]. The majority of the studies assessed the participants’ pre-injury HRQL by using a questionnaire ( n = 16) [18, 20, 22–24, 27, 28, 31–33, 35, 37, 41, 44–46] or a face-to-face interview ( n = 11) [8, 21, 25, 29, 30, 34, 36, 38–40]. At follow-up, most studies used questionnaires ( n = 17) [18, 23, 24, 27, 28, 31–33, 35, 37, 39–41, 44–47] followed by the use of telephone interviews ( n = 10) [19, 21, 22, 25, 26, 30, 34, 36, 42, 43].…”